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HALOWERK buerowerk — Recipient Domain Distribution
x402
HALOWERK buerowerk — Recipient Domain Distribution is a paid API for AI agents from buero.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-10).
Analyzes a list of email addresses and returns a distribution breakdown of recipient domains (e.g. gmail.com, outlook.com).
Price / call$0.004
Success—
StatusUnknown
How this service works
HALOWERK buerowerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
A JSON object containing a distribution of recipient email domains, mapping each unique domain (e.g. gmail.com, company.com) to the count of email addresses belonging to that domain from the submitted list.
Example use cases
Email list provider audit
“I have a list of 350 subscriber emails — can you tell me what the distribution of email domains looks like so I know which providers my audience is on?”
Mailing campaign deliverability check
“Before I send this campaign, analyze these recipient emails and give me the domain breakdown — I want to see if we're heavily concentrated on one provider like Gmail or Outlook.”
CRM contact domain profiling
“Here are the 500 contact emails from our CRM export — can you group them by domain and tell me the count per domain so I can see if most contacts are on corporate or free email providers?”
Technical details
Endpoint
POSThttps://buero.halowerk.com/v1/baumarkt/mail/recipient-domain-distribution?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, server-side aggregation of email domain frequencies from a batch of up to 500 emails. Ideal for audience analysis, deliverability planning, or CRM segmentation without writing your own parsing logic. Prefer this over manual regex grouping when working within an automated agent pipeline with x402 payment support.
Side effects
- Empty emails array returns an error (minItems: 1 required)
- Malformed email strings may be counted or skipped without warning
- Lists exceeding 500 emails are rejected (maxItems: 500)
- Strings exceeding 320 characters are rejected per item schema
- Payment failure via x402 results in a 402 response before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emails | array |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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